src/main.rs

@@ -1,11 +1,8 @@
 extern crate rscam;
-use std::time::Instant;
-
 use fltk::{
     app::App,
     enums::ColorDepth,
     frame::Frame,
-    image::RgbImage,
     prelude::{GroupExt, WidgetBase, WidgetExt},
     window::Window,
 };
@@ -25,8 +22,8 @@ fn main() {
     // 配置摄像头参数
     match camera.start(&Config {
         // use command 'v4l2-ctl --list-formats-ext' see more...
-        interval: (1, 210),     // 设置帧率为 30fps
-        resolution: (640, 400), // 设置分辨率为 640x480
+        interval: (1, 30),      // 设置帧率为 30fps
+        resolution: (640, 480), // 设置分辨率为 640x480
         format: b"MJPG",        // 设置图像格式为 MJPG
         ..Default::default()
     }) {
@@ -35,26 +32,23 @@ fn main() {
             eprint!("Open Camera Error:{}", e)
         }
     }
-    let mut w = 0 as i32;
-    let mut h = 0 as i32;
     if camera_open {
         loop {
             // 捕获一帧图像
             match camera.capture() {
                 Ok(data) => {
-                    let start = Instant::now();
                     let img = image::load_from_memory(&data).unwrap();
                     let rgb_data = img.to_rgb8();
-                    if w == 0 {
-                        w = rgb_data.width() as i32;
-                        h = rgb_data.height() as i32;
-                    }
-                    let fltk_image =
-                        RgbImage::new(&rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
+
+                    let fltk_image = fltk::image::RgbImage::new(
+                        &rgb_data.as_raw(),
+                        rgb_data.width() as i32,
+                        rgb_data.height() as i32,
+                        ColorDepth::Rgb8,
+                    )
+                    .unwrap();
                     frame.set_image(Some(fltk_image));
                     frame.redraw();
-                    let duration = start.elapsed();
-                    println!("Time elapsed in DrawImage is: {:?}", duration);
                 }
                 Err(e) => {
                     eprintln!("捕获错误: {}", e);

src/window.glade

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk+" version="3.0"/>
+  <object class="GtkWindow" id="window">
+    <property name="title">摄像头视频流</property>
+    <property name="default-width">640</property>
+    <property name="default-height">480</property>
+    <child>
+      <object class="GtkImage" id="image"/>
+    </child>
+  </object>
+</interface>
+